Here are 12 pcs of Large crimp type wire lugs, marked 1/0 so I assume for 1- ought wire size, wire crimp aperture is 7/16 inch and hole size in lug is 3/8 inch for #8 wire, tinned copper. Useful for hooking up those "big boy" amplifiers and maybe your high power battery charging system!! These are new old stock, and look like very high quality. Please see my other items.